graintech doors both cold rolled steel and galvanized

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A simple field test can determine if a door or frame is galvanized or cold rolled steel, however this test will not determine if the steel is A60, A40 or G90. The Tech Tip can be viewed here.
CRS; steel types
Levels and Models (covered in ANSI A250.8 (SDI 100) "Recommended Specifications for Standard Steel Doors and Frames") are SDI term aid in the selection and specification pr...
The three most common steel types are cold rolled steel, galvannealed steel, and galvanized steel. Cold Rolled Steel (CRS) is suitable for most interior applications, is uncoated steel a...
Yes, Steelcraft does offer optional A60 and A40 Galvannealed, and G90 Galvanized steel on doors and frames. Galvannealed A60 and A40: A60 coating designation - optional on all doors and frame...
Galvannealed and galvanized steel are zinc coated at the steel mills and are designed for rust and corrosion resistance. Both steels are passed through a hot dip coating process for rust prevention...
When factory installed on GrainTech® doors: Finish Stain - YES, top caps, bottom caps and astragals are stained (prior to attachment) to match the GrainTech® door finish. GrainTech® Steel - NO, t...
All hardware options (available on standard door) are available on GrainTech® doors. Available hardware are covered in the Steelcraft Price Manual. GrainTech® doors can be prepped for the Von Dupr...